{"id":"CVE-2020-7949","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-7949","generatedAt":"2026-10-27T20:20:00.576Z","title":"schemasystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a victim to this server, because a crafted map is mishandled during a GetValue call.","description":"schemasystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a victim to this server, because a crafted map is mishandled during a GetValue call.","published":"2020-01-27T17:15:12.000Z","lastModified":"2026-06-17T03:25:41.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["valvesoftware/dota 2"],"epss":{"score":0.04165,"percentile":0.90818,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2020-02-10","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":48031,"kind":"exploit","title":"Dota 2 7.23f - Denial of Service (PoC)","url":"https://www.exploit-db.com/exploits/48031","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/48031.txt","file":"exploits/windows/dos/48031.txt","published":"2020-02-10","added":"2020-02-10","updated":"2020-02-10","author":"Bogdan Kurinnoy","type":"dos","platform":"windows","port":null,"verified":false,"codes":["CVE-2020-7949"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comzuff.zip","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 4.2%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"https://github.com/bi7s/CVE/tree/master/CVE-2020-7949","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/bi7s/CVE/tree/master/CVE-2020-7949","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-7949","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}